BUG#17233 : LOAD DATA INFILE: failure causes mysqld dbug_assert, binlog not flushed

This patch corrects a bug involving a LOAD DATA INFILE operation on a 
transactional table. It corrects a problem in the error handler by moving
the transactional table check and autocommit_or_rollback operation to the 
end of the error handler. 

The problem was an assert was thrown after the operation completed. The 
assert found a non-sunk event in the transaction cache. The events in the 
transaction cache were added after commit_or_rollack and thereafter nothing 
removed them.

An additional test case was added to detect this
condition.

mysql-test/extra/rpl_tests/rpl_loaddata.test

@@ -15,6 +15,7 @@
 # Last_slave_errno in SHOW SLAVE STATUS (1st and 3rd commands did not: bug 986)
 
 -- source include/master-slave.inc
+source include/have_innodb.inc;
 
 connection slave;
 reset master;
@@ -156,4 +157,15 @@ drop table t2;
 connection master;
 drop table t2;
 drop table t1;
+
+# BUG#17233 LOAD DATA INFILE: failure causes mysqld dbug_assert, binlog not flushed
+CREATE TABLE t1 (word CHAR(20) NOT NULL PRIMARY KEY) ENGINE=INNODB;
+
+--error ER_DUP_ENTRY_WITH_KEY_NAME
+LOAD DATA INFILE "../std_data_ln/words.dat" INTO TABLE t1;
+
+--disable warnings
+DROP TABLE IF EXISTS t1;
+--enable warnings
+
 # End of 4.1 tests

mysql-test/r/rpl_loaddata.result

@@ -86,3 +86,7 @@ ERROR 23000: Duplicate entry '2003-03-22' for key 'day'
 drop table t2;
 drop table t2;
 drop table t1;
+CREATE TABLE t1 (word CHAR(20) NOT NULL PRIMARY KEY) ENGINE=INNODB;
+LOAD DATA INFILE "../std_data_ln/words.dat" INTO TABLE t1;
+ERROR 23000: Duplicate entry 'Aarhus' for key 'PRIMARY'
+DROP TABLE IF EXISTS t1;

sql/sql_load.cc

@@ -413,9 +413,6 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
 
   if (error)
   {
-    if (transactional_table)
-      ha_autocommit_or_rollback(thd,error);
-
     if (read_file_from_client)
       while (!read_info.next_line())
 	;
@@ -463,6 +460,9 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
       }
     }
 #endif /*!EMBEDDED_LIBRARY*/
+    if (transactional_table)
+      ha_autocommit_or_rollback(thd,error);
+
     error= -1;				// Error on read
     goto err;
   }